The book "Selected Works of Saint-Simon" is a collection of texts by the outstanding French writer and diplomat Louis de Rouvrois, Duke of Saint-Simon. This collection contains the brightest works of philosophical, political and social content, which brought the author worldwide fame and recognition. Louis de Rouvrois, who lived in the XVII-XVIII centuries, was an outstanding representative of the French Enlightenment, his ideas and views reflect the spirit of the age of reason and progress. "Selected works of Saint-Simon" will reflect the themes of social inequality, religion, politics and changes in society. The author offers his original view on the development of humanity, the role of the state and institutions in building a just society. The book "Selected works of Saint-Simon" is an important source for studying the philosophical doctrines of the history of France and Europe as a whole.